question about heads

[bobafett]

i have an 86lx-i, and i was wondering if i could swap in the heads from an 89, i gather that the 88-89 have higher compression because of the heads, which results in +- 10 HP gains.

is this a feasable project?

and there is a tricky part to this question, if i get the GUDE racing package, which includes ported and polished heads, will they be more effective if i already had the 89 heads on, or would either the 86 heads or the 89 heads turn out the same after gude works on them?

a little insight please?

[PhydeauX]

The diference in compression is from the pistons not the heads. All the a20a motors use the same head, regardless of the year or trim package.

andy

[bobafett]

:) well thanks for clearing that up~

obviously this is a very newbie question, but would it be simple to just change the pistons, or should i just go for aftermarket pistons, and skip the 88-89 step~